GB1407600A - Carburettor having an automatic choke - Google Patents

Carburettor having an automatic choke

Info

Publication number
GB1407600A
GB1407600A GB5369172A GB5369172A GB1407600A GB 1407600 A GB1407600 A GB 1407600A GB 5369172 A GB5369172 A GB 5369172A GB 5369172 A GB5369172 A GB 5369172A GB 1407600 A GB1407600 A GB 1407600A
Authority
GB
United Kingdom
Prior art keywords
valve
vacuum
servo
plug
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5369172A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1407600A publication Critical patent/GB1407600A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
    • F02M1/10—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat

Abstract

1407600 Fluid-pressure servomotor systems FORD MOTOR CO Ltd 21 Nov 1972 [27 Dec 1971] 53691/72 Heading G3P [Also in in Divisions F1 and F2] The choke valve 28 of a carburetter is biased against the air-flow tending to open it by a thermostatic spring 60 and the spring force is opposed by a servo 90 responsive to the vacuum downstream of the throttle valve 36. The servo chamber 144 is subject to the vacuum through a sintered metal plug 106 and a central opening in an elastomeric valve disc 108. The rate of increase of vacuum in the chamber 144 is restricted by the plug 106 and the plug is by-passed through a slot 105 when the pressure in the passage 100 rises above that in the chamber and the disc 108 moves away from the plug. A bi-metallic washer 126 carries an elastomeric valve 130 which flips from a position closing the passage 124 to a position opening the passage above a predetermined temperature, e.g. 65‹F, to permit the vacuum to act on the servo diaphragm 140. The spring 60 is subject to the temperature of air passing through passages 68 and 70 into its housing 42, 66, e.g. from an exhaust manifold heater, and acts through an angularly adjustable shaft 48 on the valve 28. A piston 78 subject to the vacuum downstream of the valve 36 acts on the shaft 44 in opposition to the spring 60 and provides partial opening of the valve 28 immediately on engine starting, a lost-motion connection 152, 154 between the valve and the servo 90 permitting this opening.
GB5369172A 1971-12-27 1972-11-21 Carburettor having an automatic choke Expired GB1407600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21236271A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
GB1407600A true GB1407600A (en) 1975-09-24

Family

ID=22790686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5369172A Expired GB1407600A (en) 1971-12-27 1972-11-21 Carburettor having an automatic choke

Country Status (5)

Country Link
US (1) US3800762A (en)
JP (1) JPS5012538B2 (en)
CA (1) CA967835A (en)
DE (1) DE2261650A1 (en)
GB (1) GB1407600A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213271B2 (en) * 1973-06-22 1977-04-13
JPS5022936A (en) * 1973-07-06 1975-03-12
JPS5029928A (en) * 1973-07-18 1975-03-26
US3906912A (en) * 1973-11-16 1975-09-23 Ford Motor Co Two-phase choke system with primary and secondary heating
US3886241A (en) * 1974-03-06 1975-05-27 Ford Motor Co Carburetor cold enrichment control
US3905346A (en) * 1974-03-20 1975-09-16 Ford Motor Co Choke cap altitude kit
US3965222A (en) * 1974-09-03 1976-06-22 Schmelzer Corporation Carburetion system
US4027634A (en) * 1975-08-27 1977-06-07 Schmelzer Corporation Vacuum break assembly
JPS5445222Y2 (en) * 1976-02-26 1979-12-25
US4284589A (en) * 1979-11-02 1981-08-18 Acf Industries, Inc. Tamper resistant choke pull-off
JPH0596383U (en) * 1992-05-28 1993-12-27 株式会社川上 Joinery
US9765767B2 (en) * 2015-05-11 2017-09-19 The Boeing Company Synthetic vacuum generator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979047A (en) * 1957-07-08 1961-04-11 Acf Ind Inc Automatic choke for small carburetors
US2942596A (en) * 1958-05-21 1960-06-28 Acf Ind Inc Automatic choke control
US2969783A (en) * 1958-08-13 1961-01-31 Gen Motors Corp Choke actuating mechanism
US3190623A (en) * 1961-08-01 1965-06-22 Chrysler Corp Automatic choke for carburetor

Also Published As

Publication number Publication date
JPS5012538B2 (en) 1975-05-13
DE2261650A1 (en) 1973-07-12
US3800762A (en) 1974-04-02
JPS4877219A (en) 1973-10-17
CA967835A (en) 1975-05-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee